Fire-clay building-block.



I. 0. ST. JOHN.

PIRE CLAY BUILDING BLOCK. APPLIOATIOH FILED AUG. 31, 1907.

Patented Dea?, 1909.

i gg/WW lmite n. Jinete lt FIRE-CLAY B'ILIBXNG-BLQHJ fiammata ena .august e To all' whom 'it concern:

Be it known that ii, JOHN 0. Sr. glenn, a citizen of the United States', and resident of St. Louis, Missouri, have invented certain new and useful Improvements in Fire-Clay Building-Blocks, ot which the following a specification containing e full, elear, and exact description, reference being had 'to the accomipanying drzwvingsg forming n. part, s

hereo My invention relates to improvements in fire clay building blocks, and vthe object 'of my invention is to ye'cmstruct a lire root building block to be used in reproo con. structions, and to `provide the ,same with means by which the running boarcls, base boards, picture molding, or any other nisliing material may be fastened to the Wall in which said blocks are used; and also e'ording a'v means by which the blocks may be held in pro er alinement.

Ifo t e above purposes,` my invention conm sists incertain novel features off-construetion and arrangement of parte, which will be hereinafter more fully set forth, pointed out l in the elaims,'and illustrateel in the accompanying drawings, in which:

.Figure l is a portion of a wall, parte thereof being broken ewa Y, wherein my im?. proved .tireproof tilingor lilockis used; Fig. 2 is a perspectiveview of my improved tireproof tiling, or' building block; Fig. is a transverse sectiontaken on the line 3-3 of Fig. l; Fig. 4 isa section taken on the line Het Figi.' i

Referring by. numerals tothe accompanying drawin 5:-1 designatesvmy improved' ireproof 'ti ing, and formed 'in the face thereof is a dove-tailed groove 2. Located in saidv groove 2 is a Wooden block 3, which projects beyonclthe face of the til responding to the thilmess of the plastering.

The dove-tailed groove 2 is formed in the tiling in the process of its manufacture in any suitable manner, and-thewooden blocks 3 are out to fit in said roovei preferably so that they may be mov therein. These fire'- proof tiling blocks are placed in thefwall Wherever it is ,desired to nail the material, suoli as the base boartl, running board,I corner strips, or picture moling; driven into the wooden strips 3.

Heretofore, in applying finishin to fireproof partitions made out or? material, fireproef ing, corfinishingnaine to this speczr'ication, 1n presence ot two Speeiieetlon oi? Letters atent.

wer( eea-eee tiling', it 'hes been nee """Jtry te di" f treni into the joints ot' the t i ig? Whieli @recess ie liable to dislocate `the t1 loeated in the Wall. By constructing n iireprec tiling ae herein described, the Wooden bloeit 3 anewers as suitable ground for applying the tiniebing' material to the well, and this bloeit' n be passed v4aeree-:s "he joints between tee tilings7 as'illustraeel Fig l, which will hold the tiling in pr' "er ai.ineinemi,

' A ireproo tiling of my imltnmfetl oonstruetion een be inetnred'or about the same as the ord y tireproot', tiling; and by its use in roof vconstra@tion.-a snbstantialantl convenient grosinl is ati'oi 'eil for 'the iinisliiig in termi, enel it else, assists infholtling the 'tiling in proper alinenient. f

The construction herein escribefl' an ililicable. for fire bricli'g. or any bloeit ot' liartiened'plaetic material other than tiling;

l. The combination of two :Zire 3i-oei liollow building bloclie provii'led with straight anti parallel y ends., siti-ee and laces each bloeit beinV formeel of hardened plastic material. am rovifletl on one or' its faces- Withv a longitudinally disposed (love-tailed groove, the grooves in each block eoineiding, a slidable wooden strip havin# (lovetailed. side ed es niovably seated in tv 1e groove in each ti e., answering` the purpose of a nail bleek and also as a fastening means for holding said tiles in aliizieinentj said wooden strip being greater in thickness then the depth of the groove in the blocks.

2. As a neviY article oi rna'nnaetnre tire proof building bloeit formed of hardened plastic material, the said building bloeit be mg provided with. parallel chambers, one of formed in one Wall of the smaller chamber, y

y.the surfaces 'ofA said` t@Boeve v'being smooth, 4and a Wooden 'strip hevingdovetailed eide edgeswand of greater thickness then the depth of the groove in which it is located?. seifl strip being free to move in said groove. lin testimony Wlfiereoi?y have signed my subscribing Witnessea JOHN U. ST, JHN. lvliwitnesses l 5E. Reeve/titi7 l WALLACE.

E. Axt 

